Home / 18,783,063.40-28,174,595.10-5,319,891.40

Finding the Fourth Proportional to 18,783,063.40, 28,174,595.10 and 5,319,891.40

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Solution

The fourth proportional to 18,783,063.40, 28,174,595.10 and 5,319,891.40 is: 7,979,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,063.40 : 28,174,595.10 = 5,319,891.40 : x
  2. Step 2: Convert to fraction form
    18,783,063.40/28,174,595.10 = 5,319,891.40/x
  3. Step 3: Cross multiply
    18,783,063.40x = 28,174,595.10 × 5,319,891.40
  4. Step 4: Simplify right side
    18,783,063.40x = 149,885,786,170,972.16
  5. Step 5: Solve for x
    x = 149,885,786,170,972.16/18,783,063.40
  6. Step 6: Final answer
    x = 7,979,837.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.